Hi, new guy here, I have been reading JUB for a couple of weeks now, but as an Aussie, I felt I should add my thoughts, and knowledge.
Queensland has got a lot of measures in place to combat flooding, as it is pretty much a yearly occurrence, however the heavy rain over the last few months has meant that these systems have already been pushed to the limit, and in some places beyond the limit, before this massive "one in one hundred year storm" has hit. Meaning that the water has had nowhere else to go. This will continue over the the next few months (though most likely in other towns, and cities) as above average rainfall is predicted for the next 3 months.
Some of these dams that have been built to combat flooding, have never been full before, and just 2 years ago due to drought were bone dry. Now they are well above official capacity, some as high as 154%. Then when you get 250ml of rain in 24 hrs (
that's 10 inches to you Americans

) the inevitable will happen.
Also to address some JUBer's relief fund concerns, both the Queensland State Government, and the Australian Commonwealth Government have pledged to supply as many funds are required as a priority. This however will not stop generous people acting kindly, and we all thank you for that. Australia is
not a third world country, and I
highly doubt the UN will be necessary as has been suggested elsewhere.
Geeman 86.
P.S. I am not directly affected by the floods, as I live about 2000km away, but as an Australian, I do feel the pain from a far.